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IUPAC Compendium of Chemical Terminology

 

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M]
[N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

> Back to index

(chain) identity period (of a polymer)
icosahedro-
icosanoids
ideal adsorbed state
ideal dilute solution
ideal chromatography
ideal gas
ideal mixture
ideal, non-linear chromatography
ideally polarized (electrified) interphase
ideally unpolarized (electrified) interphase
identity period (of a polymer)
identity reaction
illuminance, E
image converter tube
image dissection tube
imaging (photoimaging)
imbalance
imbibition (in colloid chemistry)
imenes
imides
imidic acids
imidines
imidogens
imidonium ions
imidoyl carbenes
imidoyl nitrenes
imin
imine radical
imines
iminium compounds
imino acids
imino carbenes
iminooxy (iminoxy) radicals
iminoxyl radicals
iminyl carbenes
iminylium ions
iminyl radicals
immersional wetting
immiscibility
immiscible polymer blend
immission (in atmospheric chemistry)
immission dose (in atmospheric chemistry)
immission flux (in atmospheric chemistry)
immission rate (in atmospheric chemistry)
immobile adsorption
immobilized phase (in chromatography)
immobilization (in biotechnology)
immobilization by adsorption (in catalysis)
immobilization by inclusion (in catalysis)
immobilized enzyme
immune response
immunization
immunoassay
immunochemistry
immunogen
immunoglobulin (Ig)
immunoradiometric assay
immunosuppression
impaction
impact-modified polymer
impact parameter, b
impedance, Z
impingement
impinger
imprecision (in analysis)
impregnation (in chromatography)
impregnation (in polymer chemistry)
improved canonical variational transition-state theory (ICVTST)
impulsive reaction
inaccuracy (in analysis)
inch
incidence (in medicinal chemistry)
incinerator
inclusion compound (inclusion complex)
incoherent radiation
incoherent scattering
incoherent structure
incongruent reaction
increment (for bulk materials and large units)
indicated hydrogen
indicator (visual)
indicator electrode
indicator reaction
indifferent absorbing ion
indifferent electrolyte
indirect amplification
indirect reaction
individual isotherm (in surface chemistry)
individual particle analysis
individual perception threshold (IPT) (in atmospheric chemistry)
induced radioactivity
induced reaction
inducer (in enzyme catalysis)
induction (in enzyme catalysis)
induction period
inductive effect
inductomeric effect
inductor
inelastic collision
inelastic scattering
inert
inert gas
inertial defect
inertial separator
infinite source thickness
information theory
inherent viscosity (of a polymer)
inhibition
inhibitor
inhibitory concentration (IC)
inhibitory dose (ID)
inhomogeneity error (in spectrochemical analysis)
initial energy (in in situ microanalysis)
initial rate method
initial (final) state correlations
initiation
initiator
injection temperature (in chromatography)
in-laboratory processing (in analytical chemistry)
inner electric potential, phi
inner filter effect
inner Helmholtz plane (IHP)
inner layer (compact layer) (in electrochemistry)
inner orbital X-ray emission spectra
inner salts
inner-sphere electron transfer
inoculation
inositols
in-out isomerism
input rate (in analysis)
insert (in biotechnology)
insertion
in situ microanalysis
in situ micro-X-ray diffraction (Kossel-technique)
instability (with reference to instrumentation)
instantaneous current
instantaneous rate of flow (in polarography)
instantaneous (spot) sampling (in atmospheric chemistry)
instrumental activation analysis
instrumental dependability
instrumental indication (for a precision balance)
integral capacitance (of an electrode)
integral detector (in chromatography)
integrating sphere
intended crossing (of potential-energy surfaces)
intensity
intensity (relative to base peak) (in mass spectrometry)
intensive quantity
interaction distance
interaction parameter
intercalation (in polymer chemistry)
intercalation compounds
intercalation reaction
interchange reaction
interchromophoric radiationless transition
interconal region
interconvertible enzyme
interdiffusion
interface
interfacial adhesion
interfacial agent
interfacial bonding
interfacial concentration (in electrochemistry), c
interfacial double-layer
interfacial fracture
interfacial layer
interfacial layer width (in thin films),
interfacial region 1994, 66, 1673
interfacial region 2004, 76, 2002
interfacial-region thickness
interfacial tension
interference (in analysis)
interference filter
interfering lines
interfering substance (in electroanalytical chemistry)
interferometer
interferons
intermediate
intermediate neutrons
intermolecular
intermolecular radiationless transition
internal absorptance,
internal compensation
internal conversion
internal energy, U
internal filling solution (of a glass electrode)
internal reference electrode
internal return
internal standard (in chromatography)
internal surface
internal transmittance
internal valence force field (IVFF)
international calorie
International system of units
international unit
interparticle porosity (in chromatography),
interparticle volume of the column (in chromatography), V0
interpenetrating polymer network (IPN) 1996, 68, 2305
interpenetrating polymer network 2004, 76, 1989 (This supersedes an earlier definition)
interphase
interphase transition
interstitial fraction (in chromatography)
interstitial velocity (in chromatography)
interstitial volume (in gas chromatography)
intersystem crossing
interval analysis
intervalence charge transfer
interzonal region
intimate ion pair
intra- (in organic reaction mechanisms)
intrachromophoric radiationless transition
intramolecular
intramolecular catalysis
intramolecular isotope effect
intraphase transition
intrinsic activation energy
intrinsic barrier
intrinsic detector efficiency
intrinsic full energy peak efficiency
intrinsic photopeak efficiency
intrinsic viscosity (of a polymer)
intrinsically conducting polymer
intron
inverse isotope effect
inverse kinetic isotope effect
inverse micelle
inverse square law (in radiation chemistry)
inversion
inversion height (in atmospheric chemistry)
inversion point (in phase transitions)
inverted micelle
inverted region (for electron transfer)
in vitro
in vivo
iodohydrins
iodometric titration
iodonium ions
ion
ion collector (in mass spectrometry)
ion-containing polymer
ion cyclotron resonance (ICR) mass spectrometer
ion energy loss spectra (in mass spectrometry)
ion exchange
ion-exchange chromatography
ion-exchange isotherm
ion-exchange membrane 1993, 65, 856
ion-exchange membrane 2006, 78, 2071
ion-exchange polymer
ion exchanger
ion-free layer
ionene
ionic aggregates in an ionomer
ionic concentration
ionic conductivity
ionic copolymerization
ionic dissociation (in mass spectrometry)
ionic polymer
ionic polymerization
ionic spectral lines
ionic strength, I
ionic transport number, t
ionization
ionization buffer (in flame spectroscopy)
ionization by sputtering
ionization chamber
ionization cross-section
ionization efficiency
ionization efficiency curve (in mass spectrometry)
ionization energy
ionization potential
ionizing collision (in mass spectrometry)
ionizing power
ionizing radiation
ionizing voltage
ion kinetic energy spectrum (in mass spectrometry)
ion laser
ion microscopy
ion/molecule reaction (in mass spectrometry)
ion/neutral species exchange reaction (in mass spectrometry)
ion/neutral species reaction (in mass spectrometry)
ionogenic groups
ionomer 1996, 68, 2305
ionomer 2006, 78, 2071
ionomer cluster
ionomer molecule
ionomer multiplet
ionophore
ion pair
ion-pair formation (in mass spectrometry)
ion pair return
ion probe microanalysis (IPMA)
ion pumps
ion radical
ion scattering spectrometry (ISS)
ion-selective electrode (ISE)
ion-selective electrode cell
ion source (in mass spectrometry)
ion trap mass spectrometer
ipso-attack
iridescent layers
iridoids
iron-sulfur cluster
iron-sulfur proteins
irradiance, E
irradiation
irregular macromolecule
irregular polymer
irreversible transition
isoabsorption point
isobar (in atmospheric chemistry)
isobaric mass-change determination
isobaric separation
isobars
isoclined structures (in polymers)
isoclinic point
isoconfertic separation
isocoumarins
isocratic analysis (in chromatography)
isocyanates
isocyanides
isocyclic compounds
isodesmic reaction
isodiazenes
isoelectric
isoelectric point (in electrophoresis)
isoelectronic
isoemissive point
isoentropic
isoenzyme
isoequilibrium relationship
isoflavonoids
isoionic
isoionic point (in electrophoresis)
isokinetic line (in atmospheric chemistry)
isokinetic relationship
isokinetic sampling (in atmospheric chemistry)
isolated double bonds
isolobal
isomer
isomerases
isomeric
isomeric state (in nuclear chemistry)
isomeric transition (in nuclear chemistry)
isomerism
isomerization
isomer shift (in Mossbauer spectroscopy)
isometric
isomorphic polymer blend
isomorphous structures (in polymers)
isonitriles
isonitroso compounds
isooptoacoustic point
isopeptide bond
isopotential point
isoprenes
isoprenoids
isopycnic
isopycnic separation
isorefractive
isosbestic point
isoselective relationship
isoselenocyanates
isosteric enthalpy of adsorption
isostilbic point
isotactic macromolecule
isotactic polymer
isotactic triads (in polymers)
isotherm (in atmospheric chemistry)
isothermal chromatography
isothiocyanates
isotones
isotope dilution
isotope dilution analysis
isotope effect
isotope exchange
isotope exchange analysis
isotope pattern (in mass spectrometry)
isotopes
isotopic abundance
isotopically deficient
isotopically enriched ions
isotopically labelled
isotopically modified
isotopically substituted
isotopically unmodified
isotopic carrier
isotopic enrichment
isotopic enrichment factor
isotopic fractionation factor
isotopic ion
isotopic labelling
isotopic molecular ion
isotopic scrambling
isotopic separation
isotopic tracer
isotopologue
isotopomer
isotropic
isotropic carbon
isotropic pitch-based carbon fibres
isoureas
isovalent hyperconjugation
isozyme


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